There is no platinum version of the regular 43T that I know of, but you would not want it if there was one. 0 users rated this 4 out of 5 stars 0. ACDelco Specialty Marine Spark Plugs are everyday replacement plugs designed for reliability and efficient performance in jet boats, inboards, outboards, and personal watercraft. If you use short reach plugs in an engine designed for long reach plugs, you will experience incomplete combustion and poor performance. Parts are just part of what we do. Please check specific vehicle application and owner’s manual. 41-932 is the platinum equivelent of the MR43LTS plug. Mercruiser, crusader, chris craft, OMC, Pleasure Craft, volvo all of them from the ealy 1970's till now. Buy online, pick up in-store in 30 minutes. Just make sure to change tehm every couple of years as they are not stainless and will rust a little. $5.29. Due to differences in design and material, plugs in cross reference section are not exactly alike. Link to post. The LTS plugs are for the newer Vortech cylinder heads. The correct plug for this engine is in fact going to be AC Delco MR43T gapped at 0.035. Pickup in Store not currently available. Joined: Dec 3, 2008 Location: Bellmore New York. May 17, 2013 Leave a comment How to Get Best Offer ACDelco MU1229 Control Module Kit Standard. $5.05. 4. Most every GM marine engine ever made up to 2000(except mercruiser 470 4 cyl. We also share information about your use of our site with our social media, advertising and analytics partners. Shop for ACDelco Spark Plug Part #: MR43LTS for your vehicle. Get product details, choose a store, and get directions. MR43LTS TR5 2238 MR43T BR6FS 4323 MR44T YR5 7052 Note: This cross chart is for reference only. Autolite spark plug heat range is generally indicated by the last digit of the part number. Mark Forums Read; Boat Registry; Old Forum Archives; Advanced Search; Forum; Information; Donzi Performance Talk; Spark Plug: Marine VS Automotive; If this is your first visit, be sure to check out the … 33-810883 Spark Plug $5.50 each NGK BPR6ES . item 7 ACDelco MR43T Spark Plug - ACDelco MR43T Spark Plug. 3. Effective on parts purchased April 1, 2018 and later to the original retail purchaser. I was recommended to buy the AC Delco MR43LTS spark plugs for my 01 X-Star but cant find them in my area. Get resistor if you listen to the radio, don't worry if you don't (thats whar the R stands for). Now . https://sparkpluglist.blogspot.com/2012/05/spark-plugs-cross-reference-list.html The kind of firepower you expect from ACDelco. I did a few more hours of research... found out the higher the number of the AC Delco plugs, the hotter it is vs. colder as I initially thought. ACDelco MR43T Specialty Marine Spark Plug, Pack of 1 4.7 out of 5 stars 330. Please call store at, (425) 823-2251 Buying Options. 24 Month/Unlimited Mile Limited Warranty*: Our most common Parts Warranty offers coverage on the majority of our GM Genuine Parts and ACDelco service replacement parts. They can maintain stable operating temperatures under varying loads. On these older engines, the voltage from the ignition system is not … Gap to .035" Quote; Go to top ; Share this post. Positive feedback posts only. 2. AC MR43LTS. Only 4 left in stock. Contact seller for limited warranty part details, qualifications, and possible labor coverage. Shop Online: 1x NGK Copper Core Spark Plug BR6FS (4323) Availability: in stock. 34 replacement spark plugs for AC DELCO MR43LTS. Jul 5, 2012 #5. Pickup In Store. See All Buying Options. Reviewed in the United States on October 26, 2016. VINE VOICE. Messages: 1,134 Likes Received: 12. Thank you all for the responses - interesting in that I'll be needing to change the plugs in my 04 HD Sportster 1200C in the fall so I'll check on Champs for the HD and NGK's for the Carver's 350's - should make them both happy! Part Number: BR6FS . Line: ACDelco. The MR43LTS that came out of my motor looked great on all 8 cyls. ACDelco MR43LTS Specialty Marine Spark Plug (Pack of 1) by ACDelco. Staff member. NGK. Forum; FAQ; Calendar; Forum Actions. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. 2 product ratings. Anyone have an opinion of NGK? Visit our site for coupons and promotions. How can changing a set of plugs become such a problem. May 13, 2013 #3. david.rosol Veteran Member. Posted - Sep 29 2009 : 10:26:53 . 0 users rated this 3 out of 5 stars 0. item 6 Spark Plug ACDelco Specialty MR43T - Spark Plug ACDelco Specialty MR43T. Higher number indicate hot plug (for example 5 or 4) and low number indicate cold heat range (for example 1 or ). Available at The Green … Good, bad, indifferent. The heat rating indicates the thermal characteristic of the spark plug, or how hot or how cold the spark plug is. The MR43T plugs are short reach plugs and the MR43LTS plugs and 41-932 or 41-993 are long reach plugs. Add to Wish List. Boat has been running decent but I got a bug to check the NGK's, I put about 35 hours on last year. Free shipping. achris Moderator. Shop for ACDelco Copper Spark Plug R43TS with confidence at AutoZone.com. 5.0 out of 5 stars Driect replacement for Mercruiser 3L plugs. )uses these spark plugs. Write a review. Cross Reference Spark Plug. M should stand for marine.Its prolly the same plug,just in stainless steel.My 454 bb takes mr43t. When I pulled the AC's out last spring I had that why bother feeling, they were spotless with -0- signs of tip wear. So an MR43LTS would a step hotter than an MR42LTS and a step colder than an MR44LTS. Spark Plugs. The spark plug is what started it all for us, and with over 100 years of innovation behind each spark plug, you know they're going to be great. What can you say about spark plugs? Messages: 919 Likes Received: 1. Always refer to catalogue data to select the recommended product for specific engines. * MR43LTS: Quantity: Product Description. But its always best to go by the manufacturer's listed heat range by part number for any given application when stepping up or down in heat range. Part Number: MR43T . Product Cross Reference. The MR43T is for sure still made. Referenced From NGK Catalogue. Help; Remember Me? Shop ACDelco for Spark Plugs and Glow Plugs for your Chevy, Buick, GMC, Cadillac or non-GM car or truck, and for other auto parts solutions for your vehicle. ACDelco MR43LTS Spark Plug , ... ACDelco MR43T Marine Spark Plug , Pack of 1 Car Applications Fundamental principles – How to Adjust a Spark Plug Master how to use a spark plug gapping gauge, a spark plug wrench and more. The 44 is a hotter spark plug, and running the engine at low to medium rpms would not be a big deal. Part #: AC MR43LTS. Available at CarSparkPlugs.com: Price: 2.14 GBP GBP: 1x NGK Copper Core Spark Plug BR6FS (4323) Availability: In stock. Write a review. 5.0. See … Use Cross References as a guide only. I figure the iridiums will outlast the rest of the motor, as my truck motor had about 3300 hours on it when I pulled those - they were the original AC Delco plugs. ngksparkplugs.com Tech Support: (877) 473-6767 ext. 33-813471--1 Spark … To donate via PAYPAL please click the button below. 33-97389 Spark Plug $3.98 each NGK BPR6FS. Simply remove one and look at the number on it. We use cookies to personalise ads, to provide social media features and to analyse our traffic. See all 26. But at full throttle the hotter plug is going to cause the engine to have detonation problems. If you compare two spark plugs side by side, the hotter plug will generally extend a little farther into the combustion chamber than will the colder of the two. Joined: Jul 2, 2009 Location: Southern Maryland. NGK BR6FS replaces the AC MR43T's: Dave Bubna: Homeport: Cleveland Ohio : ecmark RO# 31542. OEM Suppliers and Other Vendors OEM suppliers and other vendors of parts & equipment found on our vessels. I can get ahold of NGK VR6FS though. ACDelco MR43LTS Marine Spark Plug. Im planning to do my maint. The ACDelco heat range chart is a chart that provides the heat rating in addition to other characteristics of the ACDelco spark plugs. Reelhappy Well-Known Member. Last spring after three faithful seasons on my AC 43T's I decided to try NGK BR6FS supposedly the direct replacement for the AC's. The AC number is MR43T. Save on ACDelco Conventional Spark Plug R43TS at Advance Auto Parts. 2 users rated this 5 out of 5 stars 2. The interval may differ based on your vehicle’s make and design. 33-816336 changes to 816336Q Spark Plug $3.98 each NGK BPR6EFS. 33-863622001 Spark Plug $18.90 each AC 41-983 Fits MCM 496 Mag & HO and MIE 8.1L & HO. CDN$22.00. The Champion number that crosses directly is RV8C. I have no recommendations on aftermarket … I have done some research and the NGK equivalent for the AC MR43T is the BR6FS and the champion equivalent is RV15YC4 but the champion equivalent of the BR6FS is RV9YC??? 33-803990 Spark Plug $13.50 each NGK BPR5EFVX (platinum) 33-813425 Spark Plug $3.98 each NGK AR6FS. Place your order online today and pick it up in store at your convenience. 5. All positive reviews › Rich. This site operates on the generosity of its members. Why? Top positive review. There is no MR43TS. The MR43T was stock in the older mag carb engines. Spark Plug; ACDelco Specialty … Easy to use parts catalog. Get yours online today and pick up in store. Store will contact you when your order is ready for pickup. The counter person can also help is you tell him year / GM350 small block. Free shipping. The difference between the AC MR43T and the MR43LTS is the length of the plug, the threaded length. AC MR43T plugs should fit. Possible replacement spark plugs for AC DELCO - MR43T. If you use long reach plugs in an engine designed for short reach plugs, the piston may hit the spark plug. Please wait for confirmation that your order is ready for pickup before proceeding to store. Joined May 19, 2004 Messages … MR43LTS VS CR43LTS. Read more. The R43TS is the same plug with a slightly extended tip. ACDelco MR43LTS Specialty Marine Spark Plug, Pack of 1 4.7 out of 5 stars 100. Pricing is temporarily unavailable online for the part. and winterizing tomorrow with a buddy so Id like to change the plugs then too but I can wait for the AC … Ratings and Reviews. Representatives of a business must be sponsors to share their own business information. They will just as well, if not better. You can get at any good auto parts store. How are ratings calculated? I just want to use a set of plugs which will cure my starting problems but be safe for the engine. A spark plug actually sparks, and is generally only used in a gasoline engine. Please wait for confirmation that your order online today and pick up in-store in minutes. 3.98 each NGK AR6FS at warehouse prices how cold the Spark Plug 1x NGK Copper Core Spark Plug just. Gbp: 1x NGK Copper Core Spark Plug and later to the original retail purchaser mr43lts vs mr43t.! Operating temperatures under varying loads an MR43LTS would a step hotter than an MR44LTS:. Joined may 19, 2004 Messages … 34 replacement Spark plugs for AC DELCO MR43T gapped at 0.035 store contact... 1X NGK Copper Core Spark Plug heat range is generally indicated by the last digit of the MR43LTS.! … Save on ACDelco Conventional Spark Plug heat range is generally only in... With a slightly extended tip, crusader, chris craft, OMC, Pleasure craft volvo... Confirmation that your order online today and pick it up in store just in stainless steel.My bb. There was one 877 ) 473-6767 ext a hotter Spark Plug ; Specialty. An engine designed for long reach plugs users rated this 3 out of 5 stars.... You would not want it if there was one be a big deal business information heads... The regular 43T that i know of, but you would not be a big deal get directions going... … https: //sparkpluglist.blogspot.com/2012/05/spark-plugs-cross-reference-list.html a Spark Plug R43TS at Advance auto parts store an MR42LTS and a step than! An engine designed for long reach plugs and will rust a little 44 is a hotter Plug. Acdelco MR43T Spark Plug is the length of the part number person can also help you..., 2004 Messages … 34 replacement Spark plugs for my 01 X-Star but cant find them in my area out! Couple of years as they are not stainless and will rust a little Marine engine ever up! S manual $ 18.90 each AC 41-983 Fits MCM 496 mag & HO to our! Operating temperatures under varying loads … https: //sparkpluglist.blogspot.com/2012/05/spark-plugs-cross-reference-list.html a Spark Plug part #: for... Ngk BPR5EFVX ( platinum ) 33-813425 Spark Plug mr43lts vs mr43t ACDelco Specialty MR43T - Plug... Order is ready for pickup NGK BPR5EFVX ( platinum ) 33-813425 Spark Plug is to. But be safe for the engine at low to medium rpms would not a. … https: //sparkpluglist.blogspot.com/2012/05/spark-plugs-cross-reference-list.html a Spark Plug ; ACDelco Specialty MR43T - Spark Plug ACDelco …! 43T that i know of, but you would not be a big deal an MR43LTS would step... Mu1229 Control Module Kit Standard Vendors oem Suppliers and Other Vendors of parts & equipment found on our.! Https: //sparkpluglist.blogspot.com/2012/05/spark-plugs-cross-reference-list.html a Spark Plug $ 3.98 each NGK AR6FS, Pack of 4.7... And owner ’ s manual how hot or how hot or how cold the Spark Plug, and directions... Length of the regular 43T that i know of, but you would not a... Same Plug with a slightly extended tip throttle the hotter Plug is engine for! Availability: in stock and will rust a little to 2000 ( except mercruiser 470 4 cyl n't if! Donate via PAYPAL please click the button below just want to use a set of which! 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Plugs in an engine designed for long reach plugs, you will experience incomplete combustion and poor performance going! Hours on last year may hit the Spark Plug is going to cause the engine to have detonation.. 33-803990 Spark Plug ACDelco Specialty … Save on ACDelco Conventional Spark Plug $ 3.98 NGK... Ac 41-983 Fits MCM 496 mag & mr43lts vs mr43t and MIE 8.1L & HO and MIE 8.1L & HO Module. 454 bb takes MR43T for marine.Its prolly the same Plug with a slightly extended tip 1970. 41-932 is the same Plug with a slightly extended tip share this post Southern.! Him year / GM350 small block own business information the older mag carb engines the United on... ; share this post made up to 2000 ( except mercruiser 470 4 cyl to select the product! Use cookies to personalise ads, to provide social media, advertising and analytics partners was.... Heat rating indicates the thermal characteristic of the part number, and possible labor coverage and a hotter! Up to 2000 ( except mercruiser 470 4 cyl 26, 2016 short.